1. Annamalai H and Slingo J M 2001 Active/break cycles: Diagnosis of the intraseasonal variability of the Asian summer monsoon; Clim. Dyn. 18 85–102.
2. Abrol Y P and Gadgil S 1999 Rice – in a variable climate; APC Publications Pvt Ltd, New Delhi, 243p.
3. Bhat G S 2006 The Indian drought of 2002: A subseasonal phenomenon? Quart. J. Roy. Meteor. Soc. 132 2583–2602.
4. Box G E P and Jenkins G M 1976 Time Series Analysis: Forecasting and Control, 2nd edn (San Francisco: Holden Day).
5. DES 2010 Agricultural statistics at a glance; Directorate of Economics and Statistics, Department of Agriculture and Cooperation, Ministry of Agriculture, Govt. of India, New Delhi.